Zinc‐Containing BEA Zeolites for the Propane Dehydrogenation Reaction: Influence of Adding Yttrium on the Catalytic Properties
Research results about the structure, acid-base, redox, and adsorption characteristics of zinc(yttrium)-containing dealuminated BEA zeolites (Si/Al=1000), Zn(Y)SiBEA and their catalytic properties in the propane dehydrogenation with CO<sub>2</sub> (CO<sub>2</sub>-PDH) are presented. The catalysts were prepared through a two-step procedure involving complete dealumination of the BEA zeolite followed by the introduction of Zn<sup>2+</sup> and Y<sup>3+</sup> cations into vacant T-atom sites, by impregnation. The samples obtained were characterized using XRD, XPS, <sup>29</sup>Si DP MAS NMR, low-temperature N<sub>2</sub> ad/desorption, TPR-H<sub>2</sub>, C<sub>3</sub>H<sub>8</sub>/C<sub>3</sub>H<sub>6</sub> (CO<sub>2</sub>, NH<sub>3</sub>)-TPD, and FTIR-Py techniques. The influence of zinc content and yttrium on the functional properties of Zn(Y)SiBEA surface and activity/selectivity of the catalysts (Zn<sub>1.0</sub>-, Zn<sub>2.0</sub>-, and Zn<sub>2.0</sub>Y<sub>2.0</sub>SiBEA) in the CO<sub>2</sub>-PDH process are analyzed. The balanced acid-base characteristics of the Zn(Y)SiBEA catalysts determine their activity/selectivity in the CO<sub>2</sub>-mediated propane dehydrogenation to propene. Propane conversion and propene selectivity/yield over Zn(Y)SiBEA catalysts are higher in the CO<sub>2</sub>-PDH process compared to direct propane dehydrogenation (without CO<sub>2</sub>).
Authors
- V. I. Chedryk (ORCID: https://orcid.org/0000-0003-0032-9263)
- Jacek Gurgul (ORCID: https://orcid.org/0000-0002-8001-145X)
- Laetitia Valentin
- Stanisław Dźwigaj (ORCID: https://orcid.org/0000-0003-1363-9316)
- Yannick Millot (ORCID: https://orcid.org/0009-0005-1044-6369)
- Frédéric Averseng (ORCID: https://orcid.org/0000-0002-7021-8879)
- Svitlana M. Orlyk (ORCID: https://orcid.org/0000-0001-5529-9474)
- N. V. Vlasenko (ORCID: https://orcid.org/0000-0003-2162-5969)
- Y.M. Nychiporuk
Institutions
- Centre National de la Recherche Scientifique (FR)
- Sorbonne Université (FR)
- Chuiko Institute of Surface Chemistry (UA)
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences (PL)
- L.V. Pisarzhevskii Institute of Physical Chemistry (UA)
- Laboratoire de Réactivité de Surface (FR)
Publication Details
- Journal
- ChemPlusChem
- Published
- 2025-03-04
- DOI
- https://doi.org/10.1002/cplu.202400723
- Citations
- 3
- Primary Topic
- Catalysis and Oxidation Reactions
- Type
- article
- Field-Weighted Citation Impact
- 1.17
Funders
- National Research Foundation of Ukraine